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This OEM combination gas valve is the factory-specified replacement for the Carrier PG8MAA036070AFJA packaged gas/electric unit. The gas valve is the heart of the heating system — it regulates gas pressure, controls flow to the burners, and responds directly to the control board's 24V signal to open and close during each heating cycle. When this valve fails, the furnace section will not produce heat: you may observe the inducer and igniter cycling normally, but the burners never light, or the unit enters a hard lockout after repeated failed ignition attempts.
Compatibility: Engineered for the Carrier PG8MAA036070AFJA packaged gas/electric unit. Always confirm your existing valve's part number and inlet/outlet pressure ratings on the unit's data plate before ordering. If you need fitment verification, our HVAC parts specialists are available to confirm compatibility before you buy — ships same business day once confirmed.